Home / 77,385.97-106,815.45-50,532.67

Finding the Fourth Proportional to 77,385.97, 106,815.45 and 50,532.67

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Solution

The fourth proportional to 77,385.97, 106,815.45 and 50,532.67 is: 69,749.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,385.97 : 106,815.45 = 50,532.67 : x
  2. Step 2: Convert to fraction form
    77,385.97/106,815.45 = 50,532.67/x
  3. Step 3: Cross multiply
    77,385.97x = 106,815.45 × 50,532.67
  4. Step 4: Simplify right side
    77,385.97x = 5,397,669,885.75
  5. Step 5: Solve for x
    x = 5,397,669,885.75/77,385.97
  6. Step 6: Final answer
    x = 69,749.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.